Shift Lock System Circuit Troubleshooting (2.4 L Engine) (2017 2018 2019)

NOTE:

Check for PGM-FI DTCs and CVT DTCs. If any DTCs are present, troubleshoot those first.
Before you troubleshoot, record all freeze data and any on-board snapshots, and review the General Troubleshooting Information .

PGM-FI System

DTC Description	Confirmed DTC	Pending DTC

CVT System

DTC Description	Confirmed DTC	Pending DTC	Freeze Frame

DTC (CVT)

Shift lock solenoid operation check
-1. Connect the HDS to the DLC .

-2. Turn the vehicle to the ON mode.

-3. Select the Shift Lock Solenoid Test in the Miscellaneous Test Menu, and check that the shift lock solenoid operates with the HDS.

Does the shift lock solenoid work properly?

YES

The shift lock solenoid is OK. Go to step 6.

NO

Go to step 2.

Fuse check

-1. Turn the vehicle to the OFF (LOCK) mode.

-2. Check the following fuse.

Fuse	No. D7 (10 A)
Location	Under-dash fuse/relay box

Is the fuse OK?

YES

The fuse is OK. Reinstall the fuse, then go to step 3.

Replace the No. D7 (10 A) fuse, and recheck. If the fuse blows again, repair a short to ground in the No. D7 (10 A) fuse circuit.

Open wire check (IG1 METER line)

-1. Disconnect the following connector.

Shift lever 6P connector

-2. Turn the vehicle to the ON mode.

-3. Measure the voltage between test points 1 and 2.

Test condition	Vehicle ON mode
	Shift lever 6P connector: disconnected

Test point 1	Shift lever 6P connector (female terminals) No. 5 :
Test point 2	Body ground

Courtesy of HONDA, U.S.A., INC.

Is there battery voltage?

YES

The IG1 METER wire is OK. Go to step 4.

Repair an open in the IG1 METER wire between the shift lock solenoid and the No. D7 (10 A) fuse in the under-dash fuse/relay box.

Determine possible failure area (shift lock solenoid, others)

-1. With the transmission in P position/mode, press the brake pedal.

NOTE: Do not press the accelerator pedal.

-2. Measure the voltage between test points 1 and 2.

Test condition	Vehicle ON mode
Test condition	Shift lever 6P connector: disconnected
Test point 1	Shift lever 6P connector (female terminals) No. 5 :
Test point 2	Shift lever 6P connector (female terminals) No. 6 :

Courtesy of HONDA, U.S.A., INC.

Is there battery voltage?

YES

Check the shift lock mechanism . If the mechanism is OK, replace the shift lock solenoid .

Go to step 5.

Open wire check (SLS/SHIFT LOCK SOL line)

-1. Turn the vehicle to the OFF (LOCK) mode.

-2. Jump the SCS line with the HDS, and wait more than 1 minute.

NOTE: This step must be done to protect the PCM from damage.

-3. Disconnect the following connector.

PCM connector A (51P)

-4. Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Shift lever 6P connector: disconnected
	PCM connector A (51P): disconnected
Test point 1	Shift lever 6P connector (female terminals) No. 6 :
Test point 2	PCM connector A (51P) No. 12

Courtesy of HONDA, U.S.A., INC.

Is there continuity?

YES

The SLS/SHIFT LOCK SOL wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or replace the original PCM .

Repair an open in the SLS/SHIFT LOCK SOL wire between the shift lock solenoid and the PCM.

Brake pedal position switch operation check

-1. Check the parameter(s) below with the HDS while pressing the brake pedal.

Signal	Threshold		Current conditions
Signal	Values	Unit	Values	Unit
Brake Switch	ON

Do the current condition(s) match the threshold?

YES

The brake pedal position switch is OK. Go to step 8.

If the brake lights come on, go to step 7. If the brake lights do not work, repair faulty brake light circuit.

Open wire check (STOP SW line)

-1. Turn the vehicle to the OFF (LOCK) mode.

-2. Jump the SCS line with the HDS, and wait more than 1 minute.

NOTE: This step must be done to protect the PCM from damage.

-3. Disconnect the following connector.

PCM connector A (51P)

-4. Measure the voltage between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	PCM connector A (51P): disconnected
Test point 1	PCM connector A (51P) No. 37
Test point 2	Body ground

Is there battery voltage while pressing the brake pedal and about 0 V when the pedal is released?

YES

The STOP SW wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or replace the original PCM .

Repair an open in the STOP SW wire between the PCM and the brake pedal position switch.

Transmission range switch parameter check

-1. Shift the transmission to P position/mode.

-2. Check the parameter(s) below with the HDS.

Signal	Threshold		Current conditions
Signal	Values	Unit	Values	Unit
A/T P Switch	ON

Do the current condition(s) match the threshold?

YES

The transmission range switch is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or replace the original PCM .

Go to step 9.

Transmission range switch check

-1. Turn the vehicle to the OFF (LOCK) mode.

-2. Disconnect the following connector.

Transmission range switch 10P connector

-3. Connect terminals A and B with a jumper wire.

Terminal A	Transmission range switch 10P connector (female terminals) No. 5 :
Terminal B	Body ground

Courtesy of HONDA, U.S.A., INC.

-4. Turn the vehicle to the ON mode.

-5. Check the parameter(s) below.

Signal	Threshold		Current conditions
Signal	Values	Unit	Values	Unit
A/T P Switch	ON

Do the current condition(s) match the threshold?

YES

Replace the transmission range switch .

The transmission range switch is OK. Go to step 10.

Open wire check (ATPP line)

-1. Turn the vehicle to the OFF (LOCK) mode.

-2. Remove the jumper wire.

-3. Jump the SCS line with the HDS, and wait more than 1 minute.

NOTE: This step must be done to protect the PCM from damage.

-4. Disconnect the following connector.

PCM connector C (51P)

-5. Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Transmission range switch 10P connector: disconnected
	PCM connector C (51P): disconnected
Test point 1	Transmission range switch 10P connector (female terminals) No. 5 :
Test point 2	PCM connector C (51P) No. 34

Courtesy of HONDA, U.S.A., INC.

Is there continuity?

YES

The ATPP wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or replace the original PCM .

Repair an open in the ATPP wire between the transmission range switch and the PCM.